Biology Concepts and Processes

This video tutorial for sixth graders provides an overview of life sciences, focusing on the unity and diversity of life. It covers fundamental biology themes, ecological relationships, and Earth's biogeochemical cycles. The tutorial includes assessments aligned with NGSS standards and suggests extended activities and cross-curricular opportunities to deepen understanding.

What is the primary focus of the introduction to the life journey?

• The importance of non-living things

• The role of humans in ecosystems

• The unity and diversity of living organisms

• The diversity of ecosystems

Which of the following is NOT a fundamental theme of biology?

• Cell Theory

• Gene Theory

• Homeostasis

• Photosynthesis

What is the basic unit of life according to cell theory?

• Tissues

• Organs

• Cells

• Organisms

How do organisms maintain a stable internal environment?

• Through evolution

• Through photosynthesis

• Through metabolism

• Through homeostasis

What defines a species in ecological terms?

• A group of organisms with the same diet

• A group of organisms that migrate together

• A group of interbreeding organisms

• A group of organisms that share the same habitat

Which of the following is an example of a symbiotic relationship?

• Mutualism

• Competition

• Parasitism

• Predation

What is the role of the water cycle in supporting life?

• It provides energy for photosynthesis

• It supports life and influences weather and climate

• It cycles nutrients through the soil

• It regulates temperature

How does human activity impact the carbon cycle?

• By stabilizing carbon levels in the geosphere

• By having no impact on carbon levels

• By decreasing carbon levels in the hydrosphere

• By increasing carbon levels in the atmosphere

What process is essential for converting nitrogen into a usable form for organisms?

• Evaporation

• Nitrogen fixation

• Photosynthesis

• Carbon fixation

Which cycle involves the processes of evaporation, condensation, and precipitation?

• Nitrogen cycle

• Carbon cycle

• Water cycle

• Oxygen cycle